The pill tests asserted on real localized strings but never set Loc.Current,
which defaults to a key-echo localizer. They only passed because an unrelated
test class happened to install a real Localizer first; adding the usage-monitor
modal tests changed the ordering and the assertions started seeing raw keys.
Initialize Loc.Current in the constructor, matching every other UI test class.
Adds the IWorkerClient/WorkerClient usage surface (GetUsageSnapshot,
GetModelUsage, GetTaskUsage, UsageUpdated event) and a shared
UsagePillViewModel hosted once in IslandsShellViewModel (footer) and
once in MissionControlViewModel (header), showing "5h X% · 7d Y%"
with warn/blocked/stale states via existing design tokens. The
OpenMonitorCommand is wired but currently a no-op, pending the usage
monitor modal.
mika kuns